单词:bioleached
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The rescue Flora heard somebody shouting. She looked around and saw Jeff running. Befor she could move,she heard a loud noise which grew to a terrible roar. She looked at Jell, who was waving his arms. She was so surprised that she couldn't move. She
Many people remember the colors of the rainbow by the acronym ROY G. BIV. For red, orange, yellow, green, blue, indigo and violet. Well, the color indigo just made news. Indigo gets its name from the plant Indigofera tinctoria and its relatives, whic
He wears gloves and cleans his tools with alcohol to avoid contaminating the ancient salt samples with modern microorganisms.
By Mario Ritter Broadcast: October 28, 2003 This is Steve Ember with the VOA Special English Agriculture Report. Farmers have long put animal waste on their fields. They may also use human waste. Mode
the rescue Flora heard somebody shouting. She looked around and saw Jeff running. Befor she could move,she heard a loud noise which grew to a terrible roar. She looked at Jell, who was waving his arms. She was so surprised that she couldn't move. She
Don: Hey, Yael, Have you heard? We've discovered two new oceans? Yael: Where? D: On Mars. Well, they aren't there any longer, but they were there a few billion years ago. Y: I thought scientists weren't sure if Mars had oceans or not. D: They weren't